1 . Last year, I decided to explore Antarctica alone. To get some experience, I _________ for a two-week training course. I learned all the _________: how to camp in the snow and what clothing to wear.

In October, I flew to Antarctica from Punta Arenas. I’d planned to finish the adventure within 70 days, which would make it the longest _________ one-way exploration across Antarctica. I just took such basic _________ as food and clothing, and set off alone.

The first few days were _________. The wind was as fast as about 60 mph, and my sled weighed more than 120 kg. Even if the visibility (能见度) was good, I couldn’t _________ much-it’s white everywhere. I was on the move for 13 to 15 hours a day. Then, the conditions became even worse. During the last 40 hours, the wind blew so hard that I _________ about 14 times every two hours. After I _________ 922 miles, I felt too weak and had to ask for a helicopter to pick me up. The _________ I felt when I saw the helicopter in the distance was unbelievable.

Although I fell more than 100 miles short of my __________, I am proud of what I’ve __________. After the trip, I have realized that it’s __________ to change our initial goals. I don’t __________ with those who insist on conquering (征服) somewhere. Instead, I think we should treat places with __________ and hope they’ll allow us __________ passage.